N-Doped Porous Graphene Film Decorated with Palladium Nanoparticles for Enhanced Electrochemical Detection of Hydrogen Peroxide DOI Open Access
Yue Zhang,

Shi Zheng,

Jian Xiao

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(4), P. 298 - 298

Published: March 21, 2025

Graphene film has excellent electrical conductivity and flexibility, with which it can be used as a versatile substrate to load active species construct free-standing electrochemical sensors. In this work, Pd nanoparticle-decorated N-doped porous graphene (Pd/NPGF) was prepared by simple mild strategy enhance the behavior of film-based electrodes. The morphological structure surface component Pd/NPGF were characterized scanning electron microscopy, transmission Raman spectra X-ray photoelectron spectroscopy measurements. results revealed that contained abundant pores uniformly dispersed nanoparticles, could bring favorable response. Due synergetic effects pores, uniform nanoparticles substitutional doping framework N, novel electrode provides high site exposure, specific area fast electron/mass diffusion during reactions. Considering flexibility Pd/NPGF, we selected hydrogen peroxide, significant biomarker, model investigate its performance in neutral conditions. biosensor based on exhibited enhanced activity relative NPGF (PGF) different concentrations H2O2. displayed sensitivity (176.7 μA·mM−1·cm−2), large linear range from 5 μM 36.3 mM, low limit detection (LOD) 2.3 μM, stability short response time, all qualify for promising sensor H2O2 sensing.

Language: Английский

N-Doped Porous Graphene Film Decorated with Palladium Nanoparticles for Enhanced Electrochemical Detection of Hydrogen Peroxide DOI Open Access
Yue Zhang,

Shi Zheng,

Jian Xiao

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(4), P. 298 - 298

Published: March 21, 2025

Graphene film has excellent electrical conductivity and flexibility, with which it can be used as a versatile substrate to load active species construct free-standing electrochemical sensors. In this work, Pd nanoparticle-decorated N-doped porous graphene (Pd/NPGF) was prepared by simple mild strategy enhance the behavior of film-based electrodes. The morphological structure surface component Pd/NPGF were characterized scanning electron microscopy, transmission Raman spectra X-ray photoelectron spectroscopy measurements. results revealed that contained abundant pores uniformly dispersed nanoparticles, could bring favorable response. Due synergetic effects pores, uniform nanoparticles substitutional doping framework N, novel electrode provides high site exposure, specific area fast electron/mass diffusion during reactions. Considering flexibility Pd/NPGF, we selected hydrogen peroxide, significant biomarker, model investigate its performance in neutral conditions. biosensor based on exhibited enhanced activity relative NPGF (PGF) different concentrations H2O2. displayed sensitivity (176.7 μA·mM−1·cm−2), large linear range from 5 μM 36.3 mM, low limit detection (LOD) 2.3 μM, stability short response time, all qualify for promising sensor H2O2 sensing.

Language: Английский

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